Yeah after watching a couple of these games I'm also convinced.
Physically looks very good for being 18, tall, strong and fast.
Technically, he shields the ball well, controls it well and can dribble like a winger. His passing range is pretty good, he hasn't had too many chances to cross though, but the few times he has they are decent passes, not KdB or Cancelo good though.
Defensively sound as well, the competition isn't exceptional by any means but you can only defend whats in front of you and he can.
If we can get for less than his release clause then its a great deal, let's hope we can move Mendy on though or else I don't see this happening.